CN203615509U - Machine room air conditioning system with direct air ventilation - Google Patents

Machine room air conditioning system with direct air ventilation Download PDF

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Publication number
CN203615509U
CN203615509U CN201320800590.7U CN201320800590U CN203615509U CN 203615509 U CN203615509 U CN 203615509U CN 201320800590 U CN201320800590 U CN 201320800590U CN 203615509 U CN203615509 U CN 203615509U
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China
Prior art keywords
air
machine room
new wind
direct
conditioning system
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Expired - Lifetime
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CN201320800590.7U
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Chinese (zh)
Inventor
陈文婷
李敏华
邱育群
谢春辉
徐创丽
原志锋
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Guangdong Shenling Environmental Systems Co Ltd
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Guangdong Shenling Air Conditioning Equipment Co Ltd
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Abstract

The utility model discloses a machine room air conditioning system with direct air ventilation. The machine room air conditioning system with the direct air ventilation comprises a machine room, an air supply system, an air exhausting system, a refrigerating system, a fresh air temperature and humidity sensor, a return air temperature and humidity sensor, an air supply temperature and humidity sensor and a machine room indoor static pressure sensor, and the machine room is provided with a fresh air inlet and an air exhausting port. According to the machine room air conditioning system with the direct air ventilation, fresh air refrigeration is adopted in low-temperature seasons, and compressor refrigeration is adopted in high-temperature seasons; when fresh air refrigeration is carried out, the full heat cooling capacity of fresh air is fully utilized, the duration adopting the natural cold source is long in the whole year, energy-saving effects are good, the amount of the introduced fresh air is small, and pressure of filter preprocessing of the fresh air is relatively small; in the high-temperature seasons, return air does not need to pass through an additional filter assembly and directly enters machine units to carry out cooling and humidification, and the consumption power of a fan is small.

Description

Direct-ventilation equipment room air-conditioning system
Technical field
The utility model relates to a kind of air-conditioning system, specifically a kind of direct-ventilation equipment room air-conditioning system.
Background technology
The machine room Special constant temperature constant humidity precision air conditioner that tradition is used, comprises and the precision air conditioner of air-cooled wind air conditioner and water-cooled cold type remains at present the machine room cooling method being most widely used; Due to the annual constantly heat radiation of equipment in machine room, compressor needs annual use, and air-conditioning power consumption is very large; According to statistics, under this mode, air conditioning energy consumption accounts for 35%~50% of machine room total energy consumption, and wherein the energy consumption of refrigeration system accounts for more than 70%, and supply air system is about 20%, and humidification system is about 10%, and overall power consumption is huge.
At present, there is part air-conditioning unit to utilize outdoor cold source refrigeration, comprise directly or indirectly rely on outdoor fresh air refrigerating, chilled water system naturally cooling.In the time using chilled water system naturally cooling, system need to configure relevant device provides the naturally cooling chilled water of 7 ℃ of left and right to air conditioner in machine room, this method limitation is: can directly utilize the time period of outdoor natural cooling source few (in the annual most of the time, rely on the chilled water temperature that makes of natural cooling source to be greater than 7 ℃), energy-conservation amplitude is little, and field erected quantities is large, maintenance workload is also large.Utilize outdoor new wind to provide low-temperature receiver to be generally divided into and directly utilize fresh air refrigerating or indirect utilization fresh air refrigerating.Directly introduce the technology of fresh air refrigerating, as Chinese patent literature CN 2043367 U disclose the energy-conserving communication engine room of the new wind of a kind of direct introducing, machine room comprises an air inlet with rain cover, an air draft with rain cover, fresh wind port is placed pressure fan, exhaust outlet arranges exhaust blower, when recording outdoor temperature and setting value lower than certain, open inlet air door and blower fan, introduce outdoor new wind as natural cooling source, this scheme can effectively utilize outdoor Cryogenic air to reduce power consumption, but there is following problem in this scheme: 1) temperature in machine room is too low when low temperature season, because it just introduces new wind completely in the time that outdoor temperature sets value lower than certain, when outdoor temperature is during well below design temperature, well imagine, temperature in machine room also can be far smaller than design temperature, and this scheme is not considered the humidity effect of air intake, the relative humidity of introducing new wind may be 0%~100% arbitrary value, cannot meet the environmental condition of machine room needs at all, 2) introduce the clean problem of new wind, the chemical compositions such as the new wind of this scheme is just just introduced machine room through simple filtration, dust and steam, the especially sulfur dioxide in new wind can be polluted environment in machine room, get off for a long time, even may cause chemistry corrosion to expensive computer equipment, 3) this equipment can only use when new air temperature is lower, and machine room is necessary for high temperature season and is equipped with in addition refrigeration air-conditioner.
And for example, Chinese patent literature CN2011363U discloses a kind of energy conservation device using natural energy for air conditioner system of data machine room, temperature in the resh air requirement control machine room of introducing by control, separately configures precise machine room air conditioner, opens blower fan and humidifier and keep humidity in machine room when winter; This scheme can be guaranteed the operating mode of machine room substantially, but has following problem: 1) rely on when fresh air refrigerating air-conditioning isothermal humidification device and the blower fan supplementary humidity that need to run without interruption; Due to winter outdoor new wind water capacity lower, humidification consumed energy is large, in fact, when new air temperature is during lower than tens degrees Celsius, utilize the humidification power consumption of fresh air refrigerating to be greater than compressor cooling consumed power, add extra blowing and discharging fan consumed power, at all cannot be energy-conservation; 2) the new wind of low temperature of directly introducing may be lower than machine room air dew point temperature, causes air-supply band to reveal, and damages operating computer equipment; 3) this equipment needs precise machine room air conditioner to be used in conjunction with, and initial cost is large, floor space is large, trouble is installed.
Indirectly rely on outdoor fresh air refrigerating, as Chinese patent literature CN102425828B discloses a kind of energy saver that is applicable to accurate control air conditioner in machine room, this equipment utilization heat pipe indirect refrigeration, there is following problem in this scheme: 1) energy-saving effect is poor, utilize heat pipe indirect refrigeration winter, efficiency of heat pipes is generally 60% left and right, can utilize the limited time of heat-pipe refrigerating completely, when generally outdoor new air temperature is than the low 8 ℃ of left and right of wind pushing temperature, just can adopt new wind cooling, and because efficiency of heat pipes is low, larger for the resh air requirement of lowering the temperature, new wind side electrical consumption power is large, 2) uncontrollable machine room operating mode, this scheme during lower than temperature of outgoing air, is closed refrigeration system in outdoor temperature, now, reclaims cold not necessarily can not meet machine room thermic load by heat pipe, has the too high or too low problem of wind pushing temperature, 3) this occupation area of equipment large (being provided with multiple blower fans, multiple heat pipe), airduct pipeline is many, and initial cost is large, practice of construction is difficult.
In addition, machine room generally improves reliability by the mode that increases air-conditioning redundancy quantity now, while being exactly Design of Machine Room, remove the air-conditioning that actual load needs, one of necessary increase or several air-conditionings, as for subsequent use, in the time of operating unit fault, are switched to unit operation for subsequent use.Above-mentioned several types air-conditioning all needs the mode by increasing unit quantity to realize reliability herein; the machine room of design in such a way; in the time of normal operation; always have one or several air-conditionings in stopped status; waste the usable area of machine room, and increased initial cost and the maintenance workload of machine room.Therefore, prior art has yet to be improved and developed.
Utility model content
The purpose of this utility model be to provide a kind of good energy-conserving effect, installation and maintenance easy, regulate the suitable direct-ventilation equipment room air-conditioning system of operating mode, to overcome weak point of the prior art.
By a kind of direct-ventilation equipment room air-conditioning system of this object design, comprise machine room, supply air system, exhaust system, refrigeration system, new wind-warm syndrome humidity sensor, return air Temperature Humidity Sensor, air-supply Temperature Humidity Sensor, machine room indoor static pressure sensor and control system, its architectural feature is that described machine room is provided with new wind entrance and exhaust outlet;
Described supply air system comprises that the new wind that order arranges filters pre-processing assembly, return air inlet, evaporimeter, equal-enthalpy humidifying device, pressure fan assembly and final filter; Return air enters supply air system and the mixed wind of new wind by return air inlet;
Described exhaust system comprises exhaust blower assembly, and exhaust blower assembly is discharged through exhaust outlet from air draught in machine room;
Described refrigeration system comprises multiple system of unit cooling systems independently mutually, the parallel connection of multiple system of unit cooling system; Described refrigeration system can be carried out Redundancy Design; System of unit cooling system mainly comprises compressor, condenser and refrigerating evaporator.
Described new wind filters pre-processing assembly and comprises fly net, roughing efficiency air filter and chemical filter, or fly net and multistage roughing efficiency air filter.
Described pressure fan assembly is that multiple units pressure fan assembly composes in parallel; Described pressure fan assembly can carry out Redundancy Design; Described unit pressure fan assembly comprises adjustable speed blower fan and check-valves.
Described new wind entrance arranged outside has new wind rain cover, and exhaust outlet arranged outside has air draft rain cover.
Described new wind porch is provided with new wind air-valve, and exhaust outlet place is provided with exhaust check valve or air draft air-valve, and return air inlet place is provided with return air air-valve.
Described new wind air-valve and return air air-valve are proportion expression motorized adjustment air-valve.
Described exhaust blower assembly comprises multiple units exhaust blower assembly, and multiple units exhaust blower assembly is connected in parallel, and described exhaust blower assembly can carry out Redundancy Design; Unit exhaust blower assembly comprises blower fan and VFC motor, or EC blower fan.Between described equal-enthalpy humidifying device and pressure fan assembly, be provided with water deflector.
Described refrigeration system, pressure fan assembly, exhaust system all adopt multimode design; In the time that one of them or several module break down, other trouble-free modules increase load automatically, meet total air quantity or refrigeration requirement
The utility model provides a kind of direct-ventilation equipment room air-conditioning system, at low temperature season, introduces fresh air refrigerating, and without starting compressor refrigeration system, energy-saving effect is good; By regulating the aperture ratio of new wind air-valve, return air air-valve to regulate air intake enthalpy, regulate air-supply humidity by equal-enthalpy humidifying device, effectively control the humiture of air intake, meet building environment demand; When the utility model humidification, without additional energy, utilize on the contrary water smoke evaporation to absorb the sensible heat in mixing air, played the effect of refrigeration humidification simultaneously, utilized fully the complete hot cold of new wind; Due to the complete hot cold of the new wind of the utility model utilization, freeze compared with required resh air requirement with only utilizing new wind sensible heat, total resh air requirement that the utility model is introduced only has half, so the air quantity of the need processing of the new wind filtration of system pre-processing assembly is less, in addition new wind filtration pre-processing assembly carries out specific aim design according to local air purity, good filtration effect, and the utility model adopts equal-enthalpy humidifying device, can be to washing by air, play certain cleaning effect, by above-mentioned measure, the utility model has been properly settled the problem that new wind filters; The utility model has adopted special new wind to filter pre-processing assembly, and return air whole year operation, all without the filter assemblies through extra, only needs to process by refrigeration, humidification, final stage filtration etc. are necessary, and SR is little, and pressure fan assembly consumed power is little; Finally, refrigeration system of the present utility model, pressure fan assembly, exhaust system all adopt multimode design; In the time that one of them or several module break down, other trouble-free modules increase load automatically, meet total air quantity or refrigeration requirement, and single unit can be realized the design for subsequent use of air-conditioning; Easy to install, reliability is higher, the simultaneously more effective machine room area that utilized.
Accompanying drawing explanation
Fig. 1 is the structural representation of direct-ventilation equipment room air-conditioning system in the utility model.
In figure, A is supply air system, and B is exhaust system, and C is machine room, and arrow points is wind direction.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Referring to Fig. 1, a kind of direct-ventilation equipment room air-conditioning system comprises machine room C, supply air system A, exhaust system B, refrigeration system, new wind-warm syndrome humidity sensor, return air Temperature Humidity Sensor, air-supply Temperature Humidity Sensor, machine room indoor static pressure sensor and control system, and machine room C is provided with new wind entrance 14 and exhaust outlet 15.
Supply air system A comprises the new wind filtration pre-processing assembly 3, return air inlet 16, evaporimeter 5, equal-enthalpy humidifying device 6, pressure fan assembly 7 and the final filter 8 that new wind are carried out to pre-filtering processing; Return air enters supply air system A and the mixed wind of new wind by return air inlet 16.
Exhaust system B comprises exhaust blower assembly 12, and exhaust blower assembly 12 is discharged through exhaust outlet 15 from air draught in machine room C.
Refrigeration system comprises multiple system of unit cooling systems independently mutually, the parallel connection of multiple system of unit cooling system; Described refrigeration system can be carried out Redundancy Design; System of unit cooling system comprises the compressor 9, condenser 11 and the refrigerating evaporator 10 that connect successively.System of unit cooling system according to actual needs, can be air-cooled quenching system or water-cooled quenching system; System of unit cooling system according to actual needs, can also comprise the conventional accessory of the refrigeration systems such as gas-liquid separator, oil eliminator, reservoir, device for drying and filtering.In the present embodiment, evaporimeter 5 is same evaporimeter with refrigerating evaporator 10.
New wind-warm syndrome humidity sensor is for detection of the humiture of new wind, return air Temperature Humidity Sensor is for detection of the humiture of return air, air-supply Temperature Humidity Sensor is for detection of the humiture of the treated air of sending into machine room C, and machine room indoor static pressure sensor is for detection of the indoor malleation of machine room C.
New wind entrance 14 places are provided with new wind air-valve 2, and return air inlet 16 places are provided with return air air-valve 4, and new wind air-valve 2 and return air air-valve 4 are proportion expression motorized adjustment air-valve.
New wind filters the combination that pre-processing assembly 3 is various filters, comprises fly net and roughing efficiency air filter.Particularly, according to the actual air feature of need processing, the combination of filters that new wind filters pre-processing assembly 3 can change flexibly: as local air contains the corrosive gas such as sulfur dioxide when more, new wind filters pre-processing assembly 3 and comprises fly net, roughing efficiency air filter and chemical filter; If dust is more in local air, new wind filters pre-processing assembly 3 and comprises fly net, the first roughing efficiency air filter and the second roughing efficiency air filter.
Equal-enthalpy humidifying device 6 can be high-pressure atomizing humidifier or high-pressure micro mist humidifier or wet-membrane humidifier or other forms of equal-enthalpy humidifying device.In order to prevent the air-supply process after influence of moisture after equal-enthalpy humidifying, between equal-enthalpy humidifying device 6 and pressure fan assembly 7, be provided with water deflector.Water deflector is various water fenders, and particularly, water deflector can be the water fender of the various materials such as wet film, metal, ABS.
Pressure fan assembly 7 composes in parallel for multiple units pressure fan assembly, and pressure fan assembly can carry out Redundancy Design, and in the present embodiment, unit pressure fan assembly comprises adjustable speed blower fan (pressure fan) and check-valves.
Final filter 8 can be roughing efficiency air filter or medium effeciency filter or inferior high efficiency filter.
In order to prevent that rainwater from entering the normal operation that affects equipment in machine room C in machine room C, new wind entrance 14 arranged outside have new wind rain cover 1, exhaust outlet 15 arranged outside have air draft rain cover 13: near having machine room C when rain, new wind rain cover 1 and air draft rain cover 13 can be blocked in rainwater outside machine room C effectively, prevent that rainwater from entering damage equipment in machine room C.
When exhaust blower is shut down, in order to prevent that machine room from directly not entering machine room C through filtered air by exhaust outlet 15 outward, exhaust outlet 15 places are provided with exhaust check valve or air draft air-valve.
Exhaust blower assembly 12 comprises multiple units exhaust blower assembly, and multiple units exhaust blower assembly is connected in parallel, and exhaust blower assembly 12 can carry out Redundancy Design, and unit exhaust blower assembly comprises blower fan (exhaust blower) and VFC motor, or EC blower fan (exhaust blower).
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or convert, all these improvement and conversion all should belong to the protection domain of the utility model claims.

Claims (9)

1. a direct-ventilation equipment room air-conditioning system, comprise machine room, supply air system, exhaust system, refrigeration system, new wind-warm syndrome humidity sensor, return air Temperature Humidity Sensor, air-supply Temperature Humidity Sensor, machine room indoor static pressure sensor and control system, it is characterized in that described machine room is provided with new wind entrance (14) and exhaust outlet (15);
Described supply air system comprises that the new wind that order arranges filters pre-processing assembly (3), return air inlet (16), evaporimeter (5), equal-enthalpy humidifying device (6), pressure fan assembly (7) and final filter (8); Return air enters supply air system and the mixed wind of new wind by return air inlet;
Described exhaust system comprises exhaust blower assembly (12), and exhaust blower assembly is discharged through exhaust outlet from air draught in machine room;
Described refrigeration system comprises multiple system of unit cooling systems independently mutually, the parallel connection of multiple system of unit cooling system; Described refrigeration system can be carried out Redundancy Design; System of unit cooling system comprises the compressor (9), condenser (11) and the refrigerating evaporator (10) that connect successively.
2. direct-ventilation equipment room air-conditioning system according to claim 1, is characterized in that, described new wind filters pre-processing assembly (3) and comprises fly net, roughing efficiency air filter and chemical filter, or fly net and multistage roughing efficiency air filter.
3. direct-ventilation equipment room air-conditioning system according to claim 2, is characterized in that, described pressure fan assembly (7) composes in parallel for multiple units pressure fan assembly; Described pressure fan assembly can carry out Redundancy Design; Described unit pressure fan assembly comprises adjustable speed blower fan and check-valves.
4. direct-ventilation equipment room air-conditioning system according to claim 3, is characterized in that, described new wind entrance (14) arranged outside has new wind rain cover (1), and exhaust outlet (15) arranged outside has air draft rain cover (13).
5. direct-ventilation equipment room air-conditioning system according to claim 4, it is characterized in that, described new wind entrance (14) locates to be provided with new wind air-valve (2), and exhaust outlet place is provided with exhaust check valve or air draft air-valve, and return air inlet (16) locates to be provided with return air air-valve (4).
6. direct-ventilation equipment room air-conditioning system according to claim 5, is characterized in that, described new wind air-valve (2) and return air air-valve (4) are proportion expression motorized adjustment air-valve.
7. according to the direct-ventilation equipment room air-conditioning system described in claim 1-6 any one, it is characterized in that, described exhaust blower assembly (12) comprises multiple units exhaust blower assembly, and multiple units exhaust blower assembly is connected in parallel, and described exhaust blower assembly can carry out Redundancy Design; Unit exhaust blower assembly comprises blower fan and VFC motor, or EC blower fan.
8. direct-ventilation equipment room air-conditioning system according to claim 1, is characterized in that, between described equal-enthalpy humidifying device (6) and pressure fan assembly (7), is provided with water deflector.
9. direct-ventilation equipment room air-conditioning system according to claim 1, is characterized in that, described refrigeration system, pressure fan assembly, exhaust system all adopt multimode design; In the time that one of them or several module break down, other trouble-free modules increase load automatically, meet total air quantity or refrigeration requirement.
CN201320800590.7U 2013-12-06 2013-12-06 Machine room air conditioning system with direct air ventilation Expired - Lifetime CN203615509U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104896638A (en) * 2015-06-09 2015-09-09 长沙麦融高科股份有限公司 Self-heat-extraction cabinet air-conditioning system and control method thereof
CN104930592A (en) * 2015-06-09 2015-09-23 青岛广源鑫环保通风设备有限公司 Cold and warm dual-purpose fresh air processing system
CN104949204A (en) * 2015-06-23 2015-09-30 国家电网公司 Positive pressure type aeration cooling structure of transformer substation condenser room
CN105674443A (en) * 2016-03-30 2016-06-15 成都菲尔克斯科技有限公司 Breathing-type indoor air purifier
CN105771442A (en) * 2016-03-30 2016-07-20 成都菲尔克斯科技有限公司 Indoor fresh air purifying system
CN111912042A (en) * 2020-06-22 2020-11-10 东风汽车有限公司 Circulating air utilization system and method
CN114838551A (en) * 2022-01-13 2022-08-02 东莞市科美斯科技实业有限公司 Heat pipe cooling and humidifying system for fruit and vegetable fresh-keeping warehouse under low-temperature condition in winter

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104896638A (en) * 2015-06-09 2015-09-09 长沙麦融高科股份有限公司 Self-heat-extraction cabinet air-conditioning system and control method thereof
CN104930592A (en) * 2015-06-09 2015-09-23 青岛广源鑫环保通风设备有限公司 Cold and warm dual-purpose fresh air processing system
CN104896638B (en) * 2015-06-09 2017-11-21 长沙麦融高科股份有限公司 It is a kind of from heat extraction air-conditioning and its control method
CN104930592B (en) * 2015-06-09 2018-09-18 青岛广源鑫环保通风设备有限公司 The fresh wind processing system of both cooling and heating
CN104949204A (en) * 2015-06-23 2015-09-30 国家电网公司 Positive pressure type aeration cooling structure of transformer substation condenser room
CN105674443A (en) * 2016-03-30 2016-06-15 成都菲尔克斯科技有限公司 Breathing-type indoor air purifier
CN105771442A (en) * 2016-03-30 2016-07-20 成都菲尔克斯科技有限公司 Indoor fresh air purifying system
CN111912042A (en) * 2020-06-22 2020-11-10 东风汽车有限公司 Circulating air utilization system and method
CN114838551A (en) * 2022-01-13 2022-08-02 东莞市科美斯科技实业有限公司 Heat pipe cooling and humidifying system for fruit and vegetable fresh-keeping warehouse under low-temperature condition in winter

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C14 Grant of patent or utility model
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C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: 528300, 8, No. ten, flourishing machinery equipment garden, Chencun Town, Shunde District, Guangdong, Foshan

Patentee after: Guangdong Shenling Environmental Systems Co.,Ltd.

Address before: 528300, Foshan District, Guangdong City, Shunde province Chencun Chencun Industrial Zone

Patentee before: GUANGDONG SHENLING AIR-CONDITIONING EQUIPMENT Co.,Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20140528